User Manual DDS200 Digital Demodulation System 070-9952-00

Manual OperationRF MenuSelect the RF menu using the RF key in the MAIN FUNCTION block. In thismenu (see Figure 2–25), the center frequency of the QAM signal (carrierfrequency) can be set.Figure 2–25: RF menuPressing the RF key causes the currently set center frequency to be displayed.This frequency can be changed with a 1-kHz resolution directly using either thenumeric keypad or by using the cursor keys.When the RCL RF key is pressed and the RF memory number entered, a receivefrequency previously stored with STO RF in the RF MEMORY can be recalled.The RF memory number can be selected using the keypad or the cursor keys. Ifthe receive frequency is selected with the aid of the RCL RF function, the RFmemory number and the associated text are displayed in the header.The currently set frequency can be stored in the RF memory with the aid of theSTO RF key. When the STO RF key is pressed, the desired RF memory numbercan be entered on the keypad and confirmed with the ENT key. After pressingthe EDIT TEXT key, the text assigned to the previously selected RF memorynumber can be edited (see Figure 2–26).DDS200 Digital Demodulation System User Manual 2–29